1. Department of Clinical Analysis, School of Pharmaceutical Sciences, São Paulo State University (U.N.E.S.P.), São Paulo 14800-903, Brazil
2. Department of Para-Clinic, School of Veterinary, Eduardo Mondlane University (UEM), Maputo 257, Mozambique
3. Postgraduate Program in Health Promotion, University of Franca, São Paulo 14404-600, Brazil